maignen



(No Model.)

4 Sheets-Sheet, 1,

P. A. MAIGNEN.

FILTER TM: mms Ferns nel, woran'no., wAsNxNaTou, u. c.

4 Shets-Sheet 2.

P. A. MAIGANBN. FILTER.

No. 426,945 PatentedApr. 29, 1890.

i Ff! Il L i a i @lL-Lim@ J@ /Q v Z Zzbe'nfo'.' ses. mama y C Em (No Model.) 4 sheets-'sheet s. P. A. MAIGNEN.

FILTER.

No. 426,945. PatentedApr. 29,1890'.

22 MLM 4 N E N Gan M u v n... vE

Patented Apr. 2.9, 1890.

UNITED STATES ATENT Fries.

PROSPER AUGUSTE MAIGNEN, OF LONDON, ENGLAND.

FILTER.

SPECIFICATION forming part of Letters Patent No. 426,945, dated April 29,1890.

Application filed June 4, 1889. Serial No. 313,068. (No model.) Patented in England December 14, 1887, No. l7,220. and in France Tuy 13, 188s, No. 191,807. f

To all whom it may concern: Y

Be it known that LPnosPnn AUGUSTE MAIGNEN, of London, England, a citizen of France, have invented an Improvement in Filters, (patented in Great Britain and Ireland under No. 17,220, dated December 14, 1887, and in France under No. 191,807, dated July 13, 1888,) of which the following is a specification.

My invention relates to a novel construction of a filtering device whereby I obtain a very large area of filtering-surface within a very small compass and with very few fittings, and to the combination therewith of any form of filter-case that may be desired.

My invention consists, essentially, in s upporting a textile fabric in a corrugated form so as to fulfill the foregoing obj ects, and this I carry out in various equivalent ways. In

order, however, that my invention may be thebetter understood, I now proceed to describe the same in relation to the drawings hereunto annexed, reference being had to the letters and figures marked thereon.

Like letters refer to like parts throughout the drawings.

Figures 1, 5, 11, 12, 13, 14, 15, and 16 show filters arranged so that the water ascends after being filtered. Figs. l2, 3, 4, 6, and 10 show filter arranged so that the water descends after being filtered. Figs. 7, 8, and 9 show in plan the doublechanneled supporting-diaphragms of different shapes.

I may take a cylinder or other convenient shape of textile fabric (which for water filtration is preferably asbestus-tissue) and alternately bulge the samevby an inner ring or shape A, which may be a double-channeled and perforated diaphragm or any other supporting-diaphragm, as shown in plan in Figs. 7 and 8 and in section in the various figures, and constricted by a smaller or outer ring or cord B. In place of the internal rings or diaphragms, however, I may have an internal packing of any suitable substance which may or may not possess filtering properties toact as a support to the fabric. This form is shown in Fig. G, O being the packing referred to or I may carry the said textile fabric in a corrugated form by a series of porous or perforated skeleton supports. These supports may be of any convenient shape to carry the textile fabric in corrugation-forinstance, as shown in Figs. 7 and 8-and they may be either horizont. l, vert-ical, or at any convenient angle or angles. An alternative form is shown in Figs. 15 and 1G, where the corrugations are vert-ical. Similarly these supports may be constructed of any suitable materiald such, for instance, as woven spiral wire, crossed wood, or wicker-work, or any other material or form that may lend itself to the obj ect required-or I may weave equiva lents to the successive rings or supports in the textile fabric itself, so as to cause it to maintain the required shape. The outer rings may on occasion be enlarged, as in Fig. 4, where they are shown in position, and Fig. 9, where one is shown in plan. They thus not only serve as constrictors, but by their enlarged form afford proper support to my devices when used under pressure.

The water or other `liquid introduced by the supply-pipe E or directly into the lteringvessel may be drawn directly from the interior of the said frames by ascension, as shown in Figs. 1, 5, 11, 12, 13, 14, 15, and 16, or descension, as shown in Figs. 2, 3, 4, 6, and 10, or laterally.

Upon the outer surface of my device I may deposit filtering medium by subsidence in the manner well-knownin respect of my jiltrc rapide. Again, I may pack the space between my filtering device and the casing G, which may be of any suitable form, with any suitable filtering medium H, Figs. 1, 3,

10, 11, and 12, such as carbon, sand, or sponge.

It is obvious that my device may be either single or multiple, in which latter case the collecting-pipes from the various devices will be led into a common delivery. This is shown in Figs. 13, 14, 15, and 16. In the first instance in Fig. 13 the filtering devices are formed in nests K, the enlarged constricting ring or diaphragm being preferably used, and from each set of nests K the liquid is led int-o a common delivery-pipe L. This arrange ment of nests enables them to be attached by flanges and nuts, so that they may be readily removed separately for cleansing. Plan of this is shown in Fig. 14.- Vhere vertical corrugations are used, a suitable arrangement is ICO shown in Figs. 15 and 1G in elevation and plan, respectively. Applications of my device to constant Water-service are shown in Figs. ll and 12.

Having' now particularly described and ascertained the nature of my said invention and in what manner t-he same is to be performed, I declare that what I claim isl. The combination, with a surrounding bag of textile filtering' fabric, of internal su pports consisting ot plates oli' ceramic or other ware With both faces corrugated with chairA nels crosswise to each other, so that their intersections inalce apertures through tlle'said plate, substantially as specified.

2. The combination, with a surrounding' bag ot' textile filtering fabric, of alternate in ternal supports and external constrictingrings in the forni' of corrugated ceramic or other plates, the ou tereonstricting-plate being provided with a central orifice of suitable size, substantially as described.

In 'testimony whereof I have signed my naine to this specification in the presence of two subscribing` witnesses.

PROSPER AUGUSTE MAIGNEN.

1Witnesses:

R. G. PRESTON, J". L. ArHeoNn. 

